





'''simple docstring'''






class 		lowerCamelCase	:



	def __init__( self		,   a_		,   a_						):
			lowerCAmelCase  :     Optional[Any]       						= name
			lowerCAmelCase  :     Union[str, Any]       						= val



	def __str__( self						):
			return F'''{self.__class__.__name__}({self.name}, {self.val})'''





	def __lt__( self		,   a_						):
			return self.val < other.val






class 		lowerCamelCase	:



	def __init__( self		,   a_						):
			lowerCAmelCase  :     int       						= {}
			lowerCAmelCase  :     Union[str, Any]       						= {}
			lowerCAmelCase  :     int       						= self.build_heap(a_						)



	def __getitem__( self		,   a_						):
			return self.get_value(a_						)



	def 	_lowerCamelCase     ( self		,   a_						):
			return (idx - 1) // 2



	def 	_lowerCamelCase     ( self		,   a_						):
			return idx * 2 + 1



	def 	_lowerCamelCase     ( self		,   a_						):
			return idx * 2 + 2



	def 	_lowerCamelCase     ( self		,   a_						):
			return self.heap_dict[key]



	def 	_lowerCamelCase     ( self		,   a_						):
			lowerCAmelCase  :     Dict       						= len(a_						) - 1
			lowerCAmelCase  :     Dict       						= self.get_parent_idx(a_						)

			for idx, i in enumerate(a_						):
					lowerCAmelCase  :     Optional[int]       						= idx
					lowerCAmelCase  :     Dict       						= i.val

			for i in range(a_		,   -1		,   -1						):
					self.sift_down(a_		,   a_						)
			return array



	def 	_lowerCamelCase     ( self		,   a_		,   a_						):
			while True:
					lowerCAmelCase  :     List[str]       						= self.get_left_child_idx(a_						)  # noqa: E741
					lowerCAmelCase  :     str       						= self.get_right_child_idx(a_						)

					lowerCAmelCase  :     List[str]       						= idx
					if l < len(a_						) and array[l] < array[idx]:
							lowerCAmelCase  :     Dict       						= l
					if r < len(a_						) and array[r] < array[smallest]:
							lowerCAmelCase  :     List[Any]       						= r

					if smallest != idx:
							lowerCAmelCase						,		lowerCAmelCase  :     Union[str, Any]       						= array[smallest], array[idx]
							(
							    (
							    lowerCAmelCase
							)						,		(
							    lowerCAmelCase
							)						,		
							)  :     int       						= (
							    self.idx_of_element[array[smallest]],
							    self.idx_of_element[array[idx]],
							)
							lowerCAmelCase  :     Union[str, Any]       						= smallest
					else:
							break



	def 	_lowerCamelCase     ( self		,   a_						):
			lowerCAmelCase  :     Any       						= self.get_parent_idx(a_						)
			while p >= 0 and self.heap[p] > self.heap[idx]:
					lowerCAmelCase						,		lowerCAmelCase  :     Tuple       						= self.heap[idx], self.heap[p]
					lowerCAmelCase						,		lowerCAmelCase  :     Tuple       						= (
					    self.idx_of_element[self.heap[idx]],
					    self.idx_of_element[self.heap[p]],
					)
					lowerCAmelCase  :     Optional[Any]       						= p
					lowerCAmelCase  :     Union[str, Any]       						= self.get_parent_idx(a_						)



	def 	_lowerCamelCase     ( self						):
			return self.heap[0]



	def 	_lowerCamelCase     ( self						):
			lowerCAmelCase						,		lowerCAmelCase  :     int       						= self.heap[-1], self.heap[0]
			lowerCAmelCase						,		lowerCAmelCase  :     int       						= (
			    self.idx_of_element[self.heap[-1]],
			    self.idx_of_element[self.heap[0]],
			)

			lowerCAmelCase  :     Any       						= self.heap.pop()
			del self.idx_of_element[x]
			self.sift_down(0		,   self.heap						)
			return x



	def 	_lowerCamelCase     ( self		,   a_						):
			self.heap.append(a_						)
			lowerCAmelCase  :     Union[str, Any]       						= len(self.heap						) - 1
			lowerCAmelCase  :     Dict       						= node.val
			self.sift_up(len(self.heap						) - 1						)



	def 	_lowerCamelCase     ( self						):
			return len(self.heap						) == 0





	def 	_lowerCamelCase     ( self		,   a_		,   a_						):
			assert (
			    self.heap[self.idx_of_element[node]].val > new_value
			), "newValue must be less that current value"
			lowerCAmelCase  :     Tuple       						= new_value
			lowerCAmelCase  :     Optional[int]       						= new_value
			self.sift_up(self.idx_of_element[node]						)






lowerCAmelCase									=   Node("""R""", -1)
lowerCAmelCase									=   Node("""B""", 6)
lowerCAmelCase									=   Node("""A""", 3)
lowerCAmelCase									=   Node("""X""", 1)
lowerCAmelCase									=   Node("""E""", 4)

# Use one of these two ways to generate Min-Heap

# Generating Min-Heap from array
lowerCAmelCase									=   MinHeap([r, b, a, x, e])

# Generating Min-Heap by Insert method
# myMinHeap.insert(a)
# myMinHeap.insert(b)
# myMinHeap.insert(x)
# myMinHeap.insert(r)
# myMinHeap.insert(e)

# Before
print("""Min Heap - before decrease key""")
for i in my_min_heap.heap:
					print(i)

print("""Min Heap - After decrease key of node [B -> -17]""")
my_min_heap.decrease_key(b, -17)

# After
for i in my_min_heap.heap:
					print(i)

if __name__ == "__main__":
					import doctest

					doctest.testmod()










'''simple docstring'''






# Copyright 2023 The HuggingFace Team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import TYPE_CHECKING

# rely on isort to merge the imports
from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_tokenizers_available, is_torch_available


lowerCAmelCase									=   {"""configuration_mra""": ["""MRA_PRETRAINED_CONFIG_ARCHIVE_MAP""", """MraConfig"""]}

try:
					if not is_torch_available():
										raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
					pass
else:
					lowerCAmelCase									=   [
					    """MRA_PRETRAINED_MODEL_ARCHIVE_LIST""",
					    """MraForMaskedLM""",
					    """MraForMultipleChoice""",
					    """MraForQuestionAnswering""",
					    """MraForSequenceClassification""",
					    """MraForTokenClassification""",
					    """MraLayer""",
					    """MraModel""",
					    """MraPreTrainedModel""",
					]


if TYPE_CHECKING:
					from .configuration_mra import MRA_PRETRAINED_CONFIG_ARCHIVE_MAP, MraConfig

					try:
										if not is_torch_available():
															raise OptionalDependencyNotAvailable()
					except OptionalDependencyNotAvailable:
										pass
					else:
										from .modeling_mra import (
										    MRA_PRETRAINED_MODEL_ARCHIVE_LIST,
										    MraForMaskedLM,
										    MraForMultipleChoice,
										    MraForQuestionAnswering,
										    MraForSequenceClassification,
										    MraForTokenClassification,
										    MraLayer,
										    MraModel,
										    MraPreTrainedModel,
										)
else:
					import sys

					lowerCAmelCase									=   _LazyModule(__name__, globals()["""__file__"""], _import_structure)



